June in Tokyo is the rainiest and the cloudiest month of the year. In June, the weather in Tokyo is typically warm. Average daily high temperature in June is about 24 degrees above zero. On average, Tokyo has 18 rainy, 8 cloudy, 3 sunny, and 1 partly cloudy day in June. The rains are usually heavy. June as well as February, March, July, and August is considered the most uncomfortable time to visit Tokyo.